Fighting the Japanese in Bright Sword

Bright Sword: The Protagonist Has Tons of Supplies and Trades With Li Yunlong

The protagonist makes deals with Li Yunlong but doesn't take part in the fighting directly. The author is especially meticulous and even includes the terrain of the battlefields. The protagonist seems to have several exceptionally capable people around him, and there's something involving poison gas.

Why Are There No Books About Zhou Weiguo From Snow Leopard? I'm Tired of Hearing About Liang Jian

The Protagonist Travels to Wartime, Gets Bound to a System, and Earns Rewards for Killing the Japanese Invaders

Looking for books similar to *Supporting the War Effort: Not One Japanese Soldier Gets Away*.